United StatesThe weather in September in Walla Walla East
It's warm in September in Walla Walla East with an average temperature of 25°C. Temperatures this month range from a low of 21°C to a high of 29°C. At night, you can expect temperatures between 11°C and 16°C.
Looking for great weather? September is a good time to be in Walla Walla East. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Walla Walla East, Washington. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 39°C in 2022, Walla Walla East reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 8°C in 2019. The extreme nighttime temperatures ranged from a lowest recorded value of 1°C to a highest value of 23°C.
Rainfall amount
In September, there is an average of 27 mm of precipitation, spread over 5 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in September for Walla Walla East
Click on any day in September to get detailed info about the usual weather on that day in Walla Walla East. Check out the historical temperatures and precipitation over the past 10 years on this day.
September weather comparison
| Walla Walla East | New York | |
|---|---|---|
| Average temperature | 25°C | 27°C |
| Max. temperature | 29°C | 31°C |
| Min. temperature | 11°C | -5°C |
| Total precipitation | 27 mm | 57 mm |
| Rainy days | 5 days | 9 days |
Start of September
The month of September starts in Walla Walla East with hot temps, averaging around 28°C during the day and nights around 15°C.
Mid September
By mid-September, daytime temps drop to around 25°C, with nights around 13°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
End of September
By the end of September, the average daytime temperature in Walla Walla East is around 24°C, while nighttime temps are about 13°C. There’s hardly any chance of precipitation. The weather will be mostly dry with plenty of sun.
UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Walla Walla East for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in September in Walla Walla East, Washington. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in September in Walla Walla East
Temperature in September in Walla Walla East over the years
Precipitation charts
These charts show the average amount of precipitation in September in Walla Walla East, Washington. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in September in Walla Walla East
Total precipitation in September in Walla Walla East over the years
Daily UV index in September in Walla Walla East
This chart shows the average daily UV index in September in Walla Walla East, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in September in Walla Walla East
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Average weather in Walla Walla East by month
Click on a month below to see detailed weather info for Walla Walla East. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.